windows won't start successfully
my pc's window os don't start successfully after a change in hardware. The window did not start successfully after I did the ff;
1. I have two PC.
- PC 1 is 80gbyte hardisk drive, 1024mb (2 x 512mb) ddr 400mhz
- PC 2 is 40gbyte hardisk drive, 256mb ddr 400mhz.
2. I interchange hardisk of pc1 and pc2. So the 40gbyte hardisk of pc2 is now with pc1 and vice versa.
3. I also took out 512mb ddr 400mhz of pc1 and add it on pc2. So pc1 is now reduced to 512mhz and pc2 is increased to 768mhz.
after restart, pc1 is operating well but pc2 os did not start successfully. Its says 'because of recent hardware change.'
what should I do? Help
thank you